diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2a0014b..c92a688 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,9 +9,6 @@ enable_testing()
 add_library(calculator src/calculator.c)
 target_include_directories(calculator PUBLIC include)
 
-add_executable(main src/calculator.c)
-target_include_directories(main PUBLIC include)
-
 add_executable(test_calculator tests/test_calculator.c)
 target_link_libraries(test_calculator calculator m)
 target_include_directories(test_calculator PRIVATE include)
@@ -19,4 +16,3 @@ target_include_directories(test_calculator PRIVATE include)
 add_test(NAME CalculatorTests COMMAND test_calculator)
 
 install(TARGETS calculator main DESTINATION bin)
-install(FILES include/calculator.h DESTINATION include)